/*
 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
 * Copyright (C) 2017, Grinn - http://grinn-global.com/
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <asm/arch/chilisom.h>
#include <asm/arch/cpu.h>
#include <asm/arch/hardware.h>
#include <asm/arch/omap.h>
#include <asm/arch/mem.h>
#include <asm/arch/mmc_host_def.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
#include <asm/emif.h>
#include <asm/io.h>
#include <cpsw.h>
#include <environment.h>
#include <errno.h>
#include <miiphy.h>
#include <serial.h>
#include <spl.h>
#include <watchdog.h>

DECLARE_GLOBAL_DATA_PTR;

static __maybe_unused struct ctrl_dev *cdev =
	(struct ctrl_dev *)CTRL_DEVICE_BASE;

#ifndef CONFIG_SKIP_LOWLEVEL_INIT
static struct module_pin_mux uart0_pin_mux[] = {
	{OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* UART0_RXD */
	{OFFSET(uart0_txd), (MODE(0) | PULLUDEN)},		/* UART0_TXD */
	{-1},
};

static struct module_pin_mux mmc0_pin_mux[] = {
	{OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_DAT3 */
	{OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_DAT2 */
	{OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_DAT1 */
	{OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_DAT0 */
	{OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_CLK */
	{OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)},	/* MMC0_CMD */
	{-1},
};

static struct module_pin_mux rmii1_pin_mux[] = {
	{OFFSET(mii1_crs), MODE(1) | RXACTIVE},		/* RMII1_CRS */
	{OFFSET(mii1_rxerr), MODE(1) | RXACTIVE},	/* RMII1_RXERR */
	{OFFSET(mii1_txen), MODE(1)},			/* RMII1_TXEN */
	{OFFSET(mii1_txd1), MODE(1)},			/* RMII1_TXD1 */
	{OFFSET(mii1_txd0), MODE(1)},			/* RMII1_TXD0 */
	{OFFSET(mii1_rxd1), MODE(1) | RXACTIVE},	/* RMII1_RXD1 */
	{OFFSET(mii1_rxd0), MODE(1) | RXACTIVE},	/* RMII1_RXD0 */
	{OFFSET(mdio_data), MODE(0) | RXACTIVE | PULLUP_EN}, /* MDIO_DATA */
	{OFFSET(mdio_clk), MODE(0) | PULLUP_EN},	/* MDIO_CLK */
	{OFFSET(rmii1_refclk), MODE(0) | RXACTIVE},	/* RMII1_REFCLK */
	{-1},
};

static void enable_board_pin_mux(void)
{
	chilisom_enable_pin_mux();

	/* chiliboard pinmux */
	configure_module_pin_mux(rmii1_pin_mux);
	configure_module_pin_mux(mmc0_pin_mux);
}
#endif /* CONFIG_SKIP_LOWLEVEL_INIT */

#ifndef CONFIG_DM_SERIAL
struct serial_device *default_serial_console(void)
{
	return &eserial1_device;
}
#endif

#ifndef CONFIG_SKIP_LOWLEVEL_INIT
void set_uart_mux_conf(void)
{
	configure_module_pin_mux(uart0_pin_mux);
}

void set_mux_conf_regs(void)
{
	enable_board_pin_mux();
}

void am33xx_spl_board_init(void)
{
	chilisom_spl_board_init();
}
#endif

/*
 * Basic board specific setup.  Pinmux has been handled already.
 */
int board_init(void)
{
#if defined(CONFIG_HW_WATCHDOG)
	hw_watchdog_init();
#endif

	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
	gpmc_init();

	return 0;
}

#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#if !defined(CONFIG_SPL_BUILD)
	uint8_t mac_addr[6];
	uint32_t mac_hi, mac_lo;

	/* try reading mac address from efuse */
	mac_lo = readl(&cdev->macid0l);
	mac_hi = readl(&cdev->macid0h);
	mac_addr[0] = mac_hi & 0xFF;
	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
	mac_addr[4] = mac_lo & 0xFF;
	mac_addr[5] = (mac_lo & 0xFF00) >> 8;

	if (!getenv("ethaddr")) {
		printf("<ethaddr> not set. Validating first E-fuse MAC\n");

		if (is_valid_ethaddr(mac_addr))
			eth_setenv_enetaddr("ethaddr", mac_addr);
	}

	mac_lo = readl(&cdev->macid1l);
	mac_hi = readl(&cdev->macid1h);
	mac_addr[0] = mac_hi & 0xFF;
	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
	mac_addr[4] = mac_lo & 0xFF;
	mac_addr[5] = (mac_lo & 0xFF00) >> 8;

	if (!getenv("eth1addr")) {
		if (is_valid_ethaddr(mac_addr))
			eth_setenv_enetaddr("eth1addr", mac_addr);
	}
#endif

	return 0;
}
#endif

#if !defined(CONFIG_DM_ETH) && defined(CONFIG_DRIVER_TI_CPSW) && \
	!defined(CONFIG_SPL_BUILD)
static void cpsw_control(int enabled)
{
	/* VTP can be added here */

	return;
}

static struct cpsw_slave_data cpsw_slaves[] = {
	{
		.slave_reg_ofs	= 0x208,
		.sliver_reg_ofs	= 0xd80,
		.phy_addr	= 0,
	}
};

static struct cpsw_platform_data cpsw_data = {
	.mdio_base		= CPSW_MDIO_BASE,
	.cpsw_base		= CPSW_BASE,
	.mdio_div		= 0xff,
	.channels		= 8,
	.cpdma_reg_ofs		= 0x800,
	.slaves			= 1,
	.slave_data		= cpsw_slaves,
	.ale_reg_ofs		= 0xd00,
	.ale_entries		= 1024,
	.host_port_reg_ofs	= 0x108,
	.hw_stats_reg_ofs	= 0x900,
	.bd_ram_ofs		= 0x2000,
	.mac_control		= (1 << 5),
	.control		= cpsw_control,
	.host_port_num		= 0,
	.version		= CPSW_CTRL_VERSION_2,
};

int board_eth_init(bd_t *bis)
{
	int rv, n = 0;

	writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE, &cdev->miisel);
	cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RMII;

	rv = cpsw_register(&cpsw_data);
	if (rv < 0)
		printf("Error %d registering CPSW switch\n", rv);
	else
		n += rv;

	return n;
}
#endif
